Spraying attachment for percussive tools.



PATENTED JUNE 2, 1908.

. D. S. WAUGH.

I SPRAYING ATTAGHMENTFOR PIEIRGUSSIVBTOOLS.

APPLIUATION FILED JULY 20.19067.

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7 ',.nNrTEn STATES.

PATENT oEEIoE.

DANI'ELS. wanen, oF DENVER, coLonADo, Assieuon 'ro THE ILER RooK ,DRILL MANU- y FAc'ruRING COMPANY-,or DENvER, ooLoEaDo.

y To all whom 'it may concern:

` extremity.

. The object of my invention is to produce a y struction as well as the ,function it`is in tended to perform, I will proceed to describe l "srnAirme Amfrncmmnn :son PEngnssIvE rrro'oLs.

I Specification of Letters Patent.

v Applicata-ot nieduly 2o, 190e. vseal Nt. 327,020.

Be it known that 1 DANIEL S. Winde, a citizen of the United States, residing at the city and county of Denver and State of Colo-` rado', have invented certainrnew and useful lImprovements in Spraying Attachments for Percussive Tools; and I do declare the fol` lowing Ato be a full, clear, and exact descrip.

tion of the invention, such as will'enabl'e others skilled in theart vto which it apperf tains tomake and use the same, reference` being' had to `the accom anying drawings,

and to the letters and gures of reference marked thereon, "which form a .part of this specification.' y

My .invention relates to impro, ements in means for delivering a s ra of water atzthe outer extremity of the ril hole during the drilling operation 'as 4where percussive vtools are employed todrill holes in rock` for blasting purposes. Duringk 'this drilling operation, the dust escaping at the outer extrem# ity of the hole during thedrilling operation is often very annoying especially :in case of upholes or those in which the hole is downwardly inclined from its-inner to itsou-ter In the drawing I have shown the inventicm.'v

in connection with a specialconstruction'of drill, but it is evident that it `may be employed with tools of Widely varying. specic construction. A

I take a jet ofair from thernotive fluid supply and bring the same into conjunction with a jet of Water, the s .irandv Water meeting'4 just before they escape from the spray nozzle which is directed to the outer extremity of the drill hole, whereby a spray is producedwhich successfully accomplishes the purpose heretofore explained. l Having briefly outlined my improved conthe same in detail reference'being made vto the accompanying drawing in which is illus-V trated an embodimentthereof.

In this drawing, Figure 1 is a detail view of my improved spraying apparatus looking Fig'. 3 is a section taken on the line 3-,3 Fig.

Fig. 2. Fig'. 5 is an elevation showing a drill equipped with my improvements, the parts being shown on-a greatly reduced scale.

1 The same reference characters indicate'the same parts in all the views.

.Let the numeral 5 designate the body of' a drilling tool 6 the drill bit connectedv with ,the forward extremity of said body; and 7 a crank member through which the motive fluid is delivered to the 'bodyor casing of the vtool from a suitablesource of supply.

low crank 7 While the other extremity communicates with a hollow bar 10 in which uidacts an forces t e said pin against the rock or other surface upon which the tool is also drives the body of the drill and the drill bit into-'contact with the breast of the .rock or the bottom of the hole 'where the hole has already been started.l This automatic air feed is 4not novel and nothing is claimed thereon in this application.

From the pipe 10, leads 'a branch pipe 13 its'opposite extremit being connected with -the chuokof the :too as shown at 14.

pipe 13 and comprisesfa nozzle'l; a head 16;

ldeliver air. and water to the head 16.A This 'bolt 17 passes through the head and is provided wlth passages 18 and 19 respectively.

This boltA passes 4transversely through the branchpipe 13 and the spraying device is mem and 22,`in order to make a tight joint and setion. upon the pipe by means of a nut 23 applied and screwed against the clampin member 20. The bolt 17 is provided on t eside of l the spray'head o pposlte the pipe 13 .with nuts 24 and 25, the nut 24 being screwed against thespray head and the n'ut 25 forming a lock nut. Connected with the threaded extremity of' the bolt beyond the lock nut 25, is a coupling sleeve 26 connected with a water detelescopes a (pin, 12 u on which the motive Y -and a bolt 17, perforated longitudinally to clamped to the pipe by means of clampingers 20 and 20 provided with a' lining 21 A to the reduced threaded extremity ofthe bolt' livery pipe 27. The passage 19 opens at the PatenteaUJune-a, 1908.

2. Fig 4'is a section taken onvthe line 4-4 8 is an air supply conduit whichdelivers motive fluid to a U-shaped conduit 9 lone extremity of which communicates with the hol-` l mounted.' The action of `the motive fiuid The ' spraying mechanism is fas' tened to this branch curely hold the parts in the assembled rela- The clamping members aretightened' projecting laterally from the s ray head 115;

i while the passage 18 reaches rom the interior of the pipe 13, and communicates with a passage 30 formed in a projection 31 located on the sideA of the spray head opposite the projection 294 Threaded into the projections 29 and 31, are adjusting'screws 32 which pass through boxes 33 and make' a fluid tight oint around the adjusting screws.

- rl`he inner extremities 34 of these screws areA pointed and the iiuid is delivered against thesepoints whereby it is finely divided or broken up which facilitates itssubsequent action.

Communicating with the passages 30 and 34, are other )assages 35 and36 formed in the spray hear, the said passages approaching each other as they extend outwardly. The jets of air and water passing through the passages' 35 and 36, meet `at the point 37 and pass thence inlto the spray nozzle 15 connectcd with theQspray head. W'hen this fluid escapes from the nozzle, it is in the form of a fine spray delivered at the mouth or outer extremity of the drill hole thus allaying or arresting the dust as heretofore explained.

From the foregoing description the use and operation of my improved device will be readily understood. Assuming that the drill mechanism has been put in position and the air turned on, the anchoring pin 12 will be forced in one direction and the body of the drill mechanism in the opposite direction. 'A portion of this air will ass through nthe conduit 13 whence it is de ivered through a passage 18 to the passage 30 and thence to a passage 35 and iinally delivered to the outer extremity of the spray head 37. In the mean time the -water from the conduit 27 enters the passage 19 of the bolt 17 -and passes thence tothe passage 28 where it enters the assage 36 .ofthe spray head whence it is deiv'ered to the outer extremity 37 o1 the spray nozzle where it unites'with the air and continues through the spray nozzle 15 and issues therefrom in the form of a fine spray as heretofore explained.

Having thus described my invention, what I claim is: c r

1. The combination with a motive-fluid actuated percussive tool, of a s rayinff device connected with the body of tphe tooI and provided with a spray discharge nozzle rotrudingbeyond the forward extremity ofp the tool bod a delivery head connected with the nozzl;J and provided with two passages both of which communicate at one extremity with the'nozzle while their opposite extremities terminate in distinct passages, a bolt passing through said head and provided with passages which communicate with the passaves formed in the delivery head, means for delivering air and water to the respective lastnamed passages, and adjustable means for regulating the said supply of air and water.

2. The combination with a motive fluid actuated percussive tool, of a spraying device mounted on the tool and having a sprav j discharge nozzle projecting beyond the forward extremity of the body of the tool, said spraying devicefurther comprising a spray j head with which the nozzle is connected, distinct passages formed in said head and both communicating at one extremity with the nozzle, the said head being provided with,

oppositely disposedlateral projections having longitudinal openings with which the inner extremities of the passages in the spray head respectively communicate, regulating screws entering said openings for controlling the passage of fluid thereto, and a bolt pass!v ing through the said head at right angles to the screws, thesaid bolt being provided with passages communicating with the respective v openings of the head, and means for supplying air and liquid to the respective passages in the bolt for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

DANIEL S. WAUGII.

' Witnesses :l

DENA NELSON, A. J. OBRIEN. 

